Dozens of people are now being contacted by scammers who say it's time to pay outstanding warrants and fines or face jail time.

To avoid being traced, scammers are asking victims to use prepaid Green Dot cards to clear their name.

All the crooks need is the card's number and they can grab the cash without being traced.

Barbara Noble was contacted Sunday by someone pretending to be with the Oklahoma County Sheriff's Office, who said her husband had to pay a thousand dollars for missing jury duty.

But when Noble called back the number on her caller I.D., the man sounded like he was impersonating a woman's voice.

"(It sounded like) a secretary trying to be nasally," Noble said. "If they do it to me, they're probably doing that to other people. I think it's really rotten that they do it and they get away with it."

The Oklahoma County Sheriff's Office says you'll never be contacted to pay county fines over the phone.

If you are contacted, get as much information as possible, including the phone number, and call 911.

Spokesperson Mark Myers said one elderly man, who is on disability, fell for the scam and lost $1,700.

If you need to verify outstanding warrants or fines, call the sheriff's office or court clerk's office directly.